Tchoe, Youngbin Jo, Janghyun Kim, HoSung Kim, Heehun Baek, Hyeonjun Lee, Keundong Yoo, Dongha Choi, Won Jun Kim, Miyoung Yi, Gyu-Chul 2024-01-19T15:01:44Z 2024-01-19T15:01:44Z 2021-09-05 2021-04-09 1884-4049 https://pubs.kist.re.kr/handle/201004/117140 We report monolithic integration of indium arsenide (InAs) nanorods and zinc oxide (ZnO) nanotubes using a multilayer graphene film as a suspended substrate, and the fabrication of dual-wavelength photodetectors with the hybrid configuration of these materials. For the hybrid nanostructures, ZnO nanotubes and InAs nanorods were grown vertically on the top and bottom surfaces of the graphene films by metal-organic vapor-phase epitaxy and molecular beam epitaxy, respectively. The structural, optical, and electrical characteristics of the hybrid nanostructures were investigated using transmission electron microscopy, spectral photoresponse analysis, and current-voltage measurements. Furthermore, the hybrid nanostructures were used to fabricate dual-wavelength photodetectors sensitive to both ultraviolet and mid-infrared wavelengths. English NATURE RESEARCH NANOWIRES GROWTH PHOTODETECTORS Vertical monolithic integration of wide- and narrow-bandgap semiconductor nanostructures on graphene films Article 10.1038/s41427-021-00301-3 1 NPG ASIA MATERIALS, v.13, no.1 NPG ASIA MATERIALS 13 1 scie scopus 000639110300001 2-s2.0-85104048398 Materials Science, Multidisciplinary Materials Science Article NANOWIRES GROWTH PHOTODETECTORS